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expr.c (emit_single_push_insn): Add call to push expander.

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* expr.c (emit_single_push_insn): Add call to push expander.
	* expr.h (optab_index): Add OTI_push
	(push_optab): New constant.
	* genopinit.c (optabs): Add push_optab.
	* optabs.c (init_optab): Init push optab.
	* md.texi (push??1): Document

From-SVN: r44211
This commit is contained in:
Jan Hubicka 2001-07-20 20:10:42 +00:00
parent 371b8fc0bc
commit 38f4324cb9
1 changed files with 8 additions and 0 deletions
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gcc/doc/md.texi
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@ -2125,6 +2125,14 @@ into consecutive memory locations. Operand 0 is the first of the
consecutive memory locations, operand 1 is the first register, and
operand 2 is a constant: the number of consecutive registers.
@cindex @code{push@var{m}} instruction pattern
@item @samp{push@var{m}}
Output an push instruction. Operand 0 is value to push. Used only when
@code{PUSH_ROUNDING} is defined. For historical reason, this pattern may be
missing and in such case an @code{mov} expander is used instead, with a
@code{MEM} expression forming the push operation. The @cpde{mov} expander
method is deprecated.
@cindex @code{add@var{m}3} instruction pattern
@item @samp{add@var{m}3}
Add operand 2 and operand 1, storing the result in operand 0. All operands